Polyglot Prime Check

prime-check.py

#!/usr/bin/env python

###
#Everything in between these three hashes is executed only in python

# make console.log print stuff
from __future__ import print_function

class console:
    log = print

# make require().eval() exec code in python
class require:

    def __init__(self, x):
        pass

    def eval(self, *args, **kwargs):
        self.code = "\n".join(args[0].splitlines()[3:])
        exec(self.code)
###

# this code will be eval'd in coffeescript, and last 2 lines are
# exec'ed in python
# range and all are implemented in coffeescript
code = """
range = (x,y) -> [x..y-1]
all = (x) -> x.reduce((x, y) -> x and y)
is_prime = all(42%i != 0 for i in range(2, 42))
console.log(is_prime)
"""

require('coffee-script').eval(code, { 'fileName': '__stdin' })